Oxide Spallation During Post-isothermal High Temperature Oxidation Cooling of Cr-rich Cast Alloys Highly Alloyed with Hf

Fig. (2) As-cast microstructures of the Ni-25Cr-0.25C-3.7Hf alloy (A), of the Ni-25Cr-0.50C-3.7Hf alloy (B) and of the Ni-25Cr-0.50C-5.6Hf alloy (C).